The 1973 Dr Who annual has these rather nice montage artworks at the start of several stories. The woman with green (though it was probably intended to be blonde hair is almost certainly meant to be Jo Grant. It wasn't exactly unusual for companions to look nothing like the actresses that played them in the Dr Who annuals since, as I understand matters, the artists often had no reference material to work from. However I do not believe this to have been the case in 1973.

So this looks no more like Jo Grant than the picture above - in fact throughout the annual the images of Jo Grant have noticeably shorter hair than Katy Manning had in the show. However weirdly that is almost certainly the top worn by Katy in Colony in Space

I was thinking that it was possible someone had described Jo Grant, rather than supplying an image, for some reason until I noticed that there was one picture of her that does look (at least vaguely like Katy Manning).

This image is from "The Monster Game"* so someone definitely had a reference photo from Colony in Space.

*Jo Grant has been captured by some strange monsters from an unknown planet (presumably the green creatures though this is not made clear). It is up to the resourceful Dr Who and Brigadier Lethbridge-Stewart to find a way of rescuing her as soon as possible. Play this game by joining in the hunt with Dr Who and the Brigadier.

The game is played using a dice and different coloured counters. You must throw a six to start and obey the instructions as you go along. The winner is the first person to reach Jo and rescue her from the monsters. But you must throw a six before you can rescue her.